Heating and cooling system



Jan. 31, 1933. T, BENNETT ET AL 1,895,876

HEATING AND COOLING SYSTEM Filed May 17, 1929 2 Sheets-Sheet l WSW Guyana/ a MV/M ' mvma '1'. sum; as raooxmm, AND

ing apparatus for buildin the Murray type Patented Jan. 31, 1933 UNITED STATES 1 Pr rear onion 4 ASSIGKOBS', BY mum ASSIGNMENTS, 'I. AOOBPOB-ATION 0F YORK HEATING AND COOLING SYB'IEI Application fled ita 17,

Our invention relates to heatingand cooland more particular y to apparatusan methods of ventilating and alternatively heating or cooling the air used in ventilatlng.

Among the objects of the invention are to provide an apparatus that may be used to irectl cool a single room; to provide apparatus t at may be used to either cool the air of a single room or of an-entire ventilating system; to provide efiective heattransferrin or abstracting means for uniformly and e ciently transferrin heat to or from air to be heated or coole and to provide cooling means readily ada table to a variety of applications and 'conditionsof use in a heatin or cooling and ventilating system.

Witfi-these and other objects in view which will more fully appear from. the vfollowing description, the invention comprises the methods and apparatus described in the fol lowing specification and claims.

The various features of the invention are illustrated in the accompanying drawings in which- Fig. 1 is a plan view of a heating and cooling apparatus for coolin air supplied to a ventilating system embo' ying our invention.

Fig. 2 is a vertical section of the modificagion shown in Fig. 1 taken on line 6-6 of '%he embodiment of the invention shown in Figs. 1 and 2 is particularl adapted for the indirect heat'mg of-rooms y a supply of air through a central ventilatin system. In this embodiment the air is rawn into a 'blower and forced through a heating or air passage 56 within which are placed one or more series 57 and 58 of heating or cooling means. Various'typ'es of heating or cooling means may be employed but that shown in the drawings is'pre erred. In this typepf heatin and cooling means each of the series 57 .an 58 is made up of a series of units 59, 60 and 61, three units being shown by wa of example. Each of the units 59, 60 an 61 is formed of radiator elements 62 of placed flatwise in a vertical ileupon a slightly inclined foundation 63. e radiators are so positioned that the outlet pi 1929. Serial H0. 368,878.

,amx cQamonns, or raw YORK. it. Y. o METROPOLITAN-(111711331166 colrmmr,

or units 68 and 69. The individual radi-,

ators of the final unit 61 are connected through individual connectors 70 to a com mon header 71.

When the units are to be used for cooling the air passing through the air passa' 56, a supply of cooling medium such as c illed brine ice water or a refrigerating material is su plied through'a pipe 72, valve 73' and.

i et 7 4 to the lower part of the header i i" 66 an t ence passes through the radiators of the units 59, 60 and 61 to the header 71, the coolin fluid gassing in parallel through the indivi ual ra atom of each unit and in series with the successive units. From the header 71 the exhaust liquid passes through an outlet pipe 7 5 to the upper end of the header 71 through a return pipe 76 and valve 77.

When the ,units are to be used for heating, steam or other heating fluid is supplied through a pipe 78 and valve 79 to the pipe and then gasses through the radiator units in a reverse ing medium to the hea er 66 and thence through the pipe 74 and a valve 80 to an 81 to the steam trap or other suitable out et control means. Any number of sets of heating units may be employed to suit particular conditions or capacities 'and rection to the assage of the coola single header may be used for more than one series of units as indicated in the arrange-, ment of theheader 71 and connectin pipe 7 0 in Fig. 1, or individual headers, 'suc as indicated at 66' may be employed. 7 By providing a by-pasSpassage-such as .the passage 82 between the sets of heating means of a dam er 83, the temperature of the air may be rea ily controlled. This passage 82 also provides room in which access may be had to the connectors 68, individual doors 84 being provided in the side walls for access to the connectors 67 and 69.

When the apparatus is used for cooling or chilling air to a point below its dew point,

forated pipe 86 in the lower part of the air passage 56 in advance of the heating units.

It will be apparent also that in addition to the uniform and expansive contact surfaces between the heating or cooling medium and the air, coupled with the light weight of the radiating elements, the apparatus 1s quickly responsive and, therefore, easily controlled to attain any desired condition of the air bein treated.

W at we claim is:

1. Apparatus of the type described which comprises a series of columns of flat coils of p1pe piled flatw se one on another, connect1ons between the colls of successive columns,

an inlet header, an outlet header, and means for connecting said coils of columns adjacent said headers-to said inlet and outlet headers". 2. A heating and cooling apparatus which comprises a number of ipe coils piled flatv wise, vanes on said coi s, said vanes'being spaced to form channels extending in the same general direction, means for alternatively supplying a heating medium in parallel to one of said coils and for supplying a cooling medium to the oppositeend and exhausting said respective heating and cooling media from the end opposite their supply to said coils, means for passing air through said channels, and means for removing moisture condensed from said air in passing through said channels.

3. Apparatus of the type described which comprises an air passagewa a series of heating and cooling units in sai passageway, said units comprising a number of pi coils piled flatwise in said passageway, sa1d coils com prising pipe lengths placed transversely of said passageway and connected by -"return bends, said coilshaving vanes extending longitudinally-of said passageway, the coils ofi one unit being arranged in parallel and being I arranged in series with corresponding coils of an adjacent unit, and means for alternativel supplying heating or cooling media .to said eating and cooling units.

4. Apparatus of the type described which comprises an air passageway, a series of heating and cooling units in said passageway, said units comprising a number of pi e coils piled flatwise in said passageway,sa1d coils comprising pipe lengths placed transversely ofsaid passageway and connected .by return bends, said coils having vanes extending longitudinally of said passageway, the C0118 of one unit being mounted in parallel and being connected by pipe unions in series withicorr'espending coils of an adjacent unit, means for alternatively supplying heating or cooling media to sa1d heating and cooling units, 7

and means to remove water from or add water to the air passing through said passageway. In witness whereof, we have hereunto signed our names. e

IRVING T. BE NETT. FRANK 0. RE NOLDS- CERTIFICATE or CORRECTION.

Patent No. 1,895,876. i r r I t January 31, 1933.

IRVINGJTQ BENNETT, ET AL.

It is hereby certified that error appears in the printedispecification of the tibov'e .numbered patent requiring correction as follows: Page 2, line 60, claim3, tor "arranged" read ','conneeted"; and that the said Letters Patent should be read with this correction therein, that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 14th day of March, A. 1). 1933.

v I r M. J; Moore, I (Seal) Acting Commissioner of Patents. 

